Hi, After a lot of tries with Sierra, I used the following tutorial : https://www.reddit.com/r/hackintosh/comments/547trc/macos_sierra_working_perfectly_even_imessage/?st=iujzkm73&sh=21b1cd71 It's working well, I checked my serial number, and iMessageDebug is OK. I'm able to connect to imessage and iCloud with 3 differents ID. Then my IDs are not blacklisted, When I try Facetime, I'm told to call assistance. what can I do ? I never called the assistance and I'm a little afraid. Regards. Michel.